Home / 278,108.24-383,785.80-150,783.44

Finding the Fourth Proportional to 278,108.24, 383,785.80 and 150,783.44

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Solution

The fourth proportional to 278,108.24, 383,785.80 and 150,783.44 is: 208,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,108.24 : 383,785.80 = 150,783.44 : x
  2. Step 2: Convert to fraction form
    278,108.24/383,785.80 = 150,783.44/x
  3. Step 3: Cross multiply
    278,108.24x = 383,785.80 × 150,783.44
  4. Step 4: Simplify right side
    278,108.24x = 57,868,543,147.15
  5. Step 5: Solve for x
    x = 57,868,543,147.15/278,108.24
  6. Step 6: Final answer
    x = 208,079.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.